A typical high-end film production generates several terabytes of data per day, either as footage from multiple cameras or as background information regarding the set (laser scans, spherical captures, etc). The EU pro...
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ISBN:
(纸本)9781479970797
A typical high-end film production generates several terabytes of data per day, either as footage from multiple cameras or as background information regarding the set (laser scans, spherical captures, etc). The EU project IMPART (***) has been researching solutions that improve the integration and understanding of the quality of the multiple data sources to support creative decisions onset or near it, and an enhanced post-production as well. The main results covered in this paper are: a public multisource production dataset made available for research purposes, monitoring and quality assurance of multicamera set-ups, multisource registration, anthropocentric visual analysis for semantic content annotation, acceleration of 3d reconstruction, and integrated 2d-3dwebvisualization tools.
In view of the contradiction between massive data of road3d scene and bandwidth of current network transmission, a data real-time compression method for massive 3d road scene is proposed. Firstly, three-dimensional c...
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ISBN:
(纸本)9783037858042
In view of the contradiction between massive data of road3d scene and bandwidth of current network transmission, a data real-time compression method for massive 3d road scene is proposed. Firstly, three-dimensional coordinates are reduced to two-dimensional by localization. The bit rate is also significantly reduced by relative treatment. Secondly, the inter-frame prediction method applicable to road scene rendering is proposed in order to reduce data redundancy of adjacent stations. Thirdly, a lossless and high compact data format is defined to store the coordinates for road scene network transmission. Finally, the bit stream is further compressed by using adaptive arithmetic coding and thus higher compression ratio is obtained. Applications show that this compression method meets the requirements of road scene real-time network transmission.
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